Dust dampener for vacuum cleaners



July I3, 1937.v J. N. vx-:Los

DUST DAMPENER FOR VACUUM CLEANERS Filed Sept. 18, 1936 Qmmes Vdos y INVENTOR.

AT ORNEY Patented July 13, 1937 UNITED sTATss PATENT GFFICE James N. Velas,

Youngstown, Ohio Application September 18, 1936, Serial No. 101,488

2 Claims.

bag of an electricV sweeper through using either oil or Water which is provided from a small reservoir positioned. on the handle of the sweeper. I have provided a simply operating valve positioned in a cylindrical housing adapted to be attached to an electric sweeper between the sweeper and the dust bag. The air blast from the sweeper opens the valve which allows the water or oil to spray into the dust being forced into the dust bag;v

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made Within the scope of what is claimed, without departing from the spirit of the inveni tion.

The invention is illustrated in the accompanying drawing, whereinz 1 Figure 1 is a view of the device with parts broken away and showing parts in cross section, the entire device being shown positioned upon a sweeper.

Figure 2 is an enlarged detail view of the valve operating and spraying means. Y

By referring to the drawing it will be seen that there is provided a cylindrical housing l. This cylindrical housing l is adapted for Yattachment between a sweeper 2 and the dust bag 3. The cylindrical housing l has pro-vided within it a reducing flange fi, a spray nozzle 5, and a valve plunger 6, one end of which is adapted to operate within the spray nozzle 5 and the other end having positioned upon it a spring l. The

spring l is held in position upon ,the valve plunger 6 by means of an inverted L-shaped bracket 8 and a collar 9. The bracket 8 is positioned upon a body portion lli of the spray nozzle 5. The valve plunger 6 is operated by means of an operating arm Il which has positioned upon its lower end a disk I2. The other end of this operating arm Il is pivoted to a bracket I3 on the cylindrical housing l.

A flexible connecting hose M is attached tothe upper section of the body portion l0 and leads toa reservoir l5 which is clamped on the handle l5 of the sweeper. An additional flexible connecting hose Il leads from the top of the reservoir l5 to a funnel shaped member I8 positioned within the cylindrical housing l. This member i8 is provided with a screen I9.

In operation the device acts as follows:-

The air blast from the sweeper pushes against the disk l2 causing the arm il to swing backwardly, `thuis moving the valve plunger 6 and opening the spray nozzle 5. A line spray of oil or water is thus projected directly at the opening in the reducing flange i. At this point the oil or Water spray mixes thoroughly with the dust and isforced on into the dust bag 3. The spray is partially caused by the blast'of air past the spray nozzle 5 and partially by pressure built up within the reservoir l5 by means of the iiexible connecting hose Il and the funnel shaped member i8 which is positioned within the path of the air blast.

What I claimV isz- 1. A dust dampener for vacuum cleaners comprising a cylndrical housing ladapted to be positioned between the sweeper and the dust bag, a spray nozzle positioned within` said cylindrical housing, an air controlled valve on said spray nozzle adapted to open said spray nozzle when the sweeper is in operation, a reservoir positioned on said sweeper, a iiexible hose connecting said spray nozzle Vto said reservoir, together with a secondary hose connecting said reservoir to an air intake positioned within said cylindrical housing.

2. A dust dampener for vacuum cleaners comprising a cylindrical housing adapted to be positioned on the dust outlet of a vacuum sweeper, a spray nozzle positioned within said cylindrical housing, an air controlled valve on Isaid spray nozzle adapted to open said spray nozzle when the sweeper is in operation, a reducing flange also positioned within said cylindrical housing so as todirect the dust to an area directly in front of said spray nozzle, a reservoir positioned on said sweeper, a iieXiblehose connecting said spray nozzle to the bottom of said reservoir together with a secondary hose connecting the top of said reservoir to an air intake positioned within said cylindrical housing.

JAMES N. VELOS. 

